I don't recoginize the multmonitor stand your using.
What brand is it? Maybe a link to manufaturer or disturbutor.

I need to change monitor stands.
My current 6 (3X2 ) monitor stand can't handle monitors larger then 19".
I been moving to 24" widescreen and need a new stand.
Currently I am just using 3 but I really want to go back to the 6 monitor configuration I was using.
So I need a 6 montior that can handle bigger monitors, any pointers would be handy.